Help with PyPlot -- How to change the aspect ratio of a plot

[Daniel Carrera]

Hello,

I use PyPlot for my work. I normally manage to figure out how to do things by reading the Matplotlib documentation, but this time I am really stuck. I want to make a plot that has an unusual aspect ratio. I need it to be four times taller than it is wide (the plot is a 2D image). The candidate solution I found is the "set_aspect()" function from Matplotlib:

http://matplotlib.org/examples/pylab_examples/aspect_loglog.html

https://www.mail-archive.com/matplotl...@lists.sourceforge.net/msg16078.html

http://stackoverflow.com/questions/7965743/python-matplotlib-setting-aspect-ratio

http://matplotlib.org/api/axes_api.html#matplotlib.axes.Axes.set_aspect

So, based on this, I looked for a function called "set_aspect()" or "aspect()", but there is none. I looked for an "aspect" parameter for the "axis()" command, but there does not appear to be one (hard to say for sure because "axis()" doesn't give an error if you pass a parameter it doesn't know about.

Can anyone help me?

Cheers,

Daniel.

[Adrian Cuthbertson]

Hi Daniel, this worked for me in IJulia...

using PyPlot

using PyCall

img = imread("ada.png");

fig = plt.figure()

ax = plt.Axes(fig,[0,0,1,1])

fig[:add_axes](ax)

ax[:set_axis_off]()

ax[:imshow](img,aspect="auto")

ax[:set_aspect](0.5)

plt.show()

Adrian.

[Daniel Carrera]

Thanks! That was very helpful.

Cheers,

Daniel.

--
When an engineer says that something can't be done, it's a code phrase that means it's not fun to do.